An independent domestic drama/horror about the loss of a loved one doesn't sound particularly out of the ordinary. Honestly, this would probably have been a fairly unremarkable indie flick if it wasn't for one crucial difference: this is an animated movie made by one guy with what looks like MS Paint.
I don't even know how to respond to this... I'm not going to say it's some unknown masterpiece. Practically every aspect of it is bad, but I enjoyed it all the way through. I don't even like it in a so-bad-it's-good way. I wasn't laughing at it, I was kind of just drawn in by it's amateurish charm.
Calling a movie "charming" sounds condescending, but that's the best term I can come up with for it. The amount of effort that goes into a feature length animation, even one as crude as this, is daunting and I'm unironically impressed by any one person creating an animated movie and putting it out there. I imagine other reviewers would be much more negative than me, but Insect gets a thumbs up from me. It's easily one of the most interesting movies I've stumbled upon in recent memory.